1z1-078 無料問題集「Oracle Database 19c: RAC, ASM, and Grid Infrastructure Administration」

（A）When a policy is activated, resources cannot be automatically started to comply with the policy definition.

（B）When a policy is first created, it is initially active.

（C）An administrator-defined policy may be activated using the srvctl utility.

（D）When a policy is first created, it is initially inactive.

（E）When a policy is activated, nodes may be reassigned to server pools based on the policy definition.

（F）When a policy is activated, resources can be automatically stopped to comply with the policy definition.

（A）If network time protocol (NTP) time servers are unreachable on any cluster node, then Oracle Cluster Time Synchronization Service (CTSSD) will start automatically in active mode when the clusterware is started.

（B）Configure network time protocol (NTP) on all cluster nodes, and then start the Oracle Cluster Time Synchronization Service (CTSSD) in active mode on all cluster nodes.

（C）Configure network time protocol (NTP) on all cluster nodes; Oracle Cluster Time Synchronization Service (CTSSD) will then start automatically in observer mode when the clusterware is started.

（D）If network time protocol (NJP) is not configured properly on all cluster nodes, then Oracle Cluster Time Synchronization Service (CTSSD) will start automatically in active mode when the clusterware is started.

（E）Deactivate network time protocol (NTP) on all cluster nodes; Oracle Cluster Time Synchronization Service (CTSSD) will then start automatically in active mode when the clusterware is started.

（A）If a database instance writes to an ASM-based datafile whose redundancy attribute is set to mirror, then the ASM instance writes the mirror copy

（B）Database instances can write metadata to ASM diskgroups.

（C）Database instances perform read I/O directly to ASM Disks.

（D）Database instances perform read I/O using an ASM instance as an I/O Server.

（E）ASM instances can write metadata to ASM diskgroups.

（A）Oracle RAC affinity for partitioned tables routes database requests to all available Oracle RAC instances evenly to create a global affinity in such a way that each instance always gets an even number of requests leading to higher Oracle RAC performance by using a higher levels of available global cache to reduce global resource contention.

（B）Oracle RAC affinity for partitioned tables routes all database requests for a partition tables to a single Oracle RAC instance leading to higher Oracle RAC performance and scalability because of improved cache locality and reduced internode synchronization and block pings of the partition tables.

（C）Oracle RAC affinity for partitioned tables routes database requests to Oracle RAC instances in such a way that each instance always gets requests for a disjoint subset of rows in the database, this affinity leads to higher Oracle RAC performance and scalability because of improved cache locality and reduced internode synchronization and block pings.

（D）To enhance the performance of distributed transactions with applications server that provides XA affinity, you can direct all branches of a distributed transaction to a single instance in the cluster to improve cache locality and reduce internode synchronization and block pings.

（E）To enhance the performance of distributed transactions with applications server that provides XA affinity, you can automatically spawn new dedicated database RAC instances to isolate distributed transaction.

（A）Existing data files in TBS1 must also use the same template.

（B）User-defined subdirectories ORCL and USERS must already exist.

（C）The DB_CREATE_FILE_DEST parameter must be set to +DATA(newtemplate).

（D）The +DATA disk group should not be part of Flex ASM.

（E）newtemplate must be defined for the +DATA disk group.

（A）crsctl disable crs

（B）crsctl config crs

（C）crsctl stop crs

（D）crsctl stop cluster

（A）It requires the cdb to use shared undo management.

（B）One undo tablespace for each pdb is required.

（C）PDBs can have local temporary

（D）PDBs must use shared Temporary

（E）One undo tablespace for each instance is required.

（F）You can open one, several, or all PD3s on one, several, or all cdb instances.

（A）A server pool can have different attributes defined for different policies in the policy set, when user-defined policy management is used.

（B）Clusterware administrators cannot directly modify the policy set when Quality of Service (QoS) Management is used.

（C）All server pools in a cluster are controlled by the policy set, when user-defined policy management is used.

（D）A server pool can have the same attributes defined for different policies in the policy set, when user-defined policy management is used.

（E）Servers in a server pool outside the control of the policy set are never affected by policy changes, when user-defined policy management is used.